How many probes can be connected to a Frigologs device?
You can connect up to 10 probes.

How many devices can be connected to WiFi hotspot?
You can connect up to 10 Frigologs devices to a single wireless hotspot. In total you can connect in total a hundred temperature probes.

How monitor a Supermarket line of refrigerators?
You connect a single device to the power in the line, and install a probe in every evaporator area, this ensure you monitoring every refrigeration unit 

If we have several walk-in freezer or cooler how many Frigologs we need?
All refrigeration units side y side can be monitoring by only one device and a probe for every unit.

If we have a big walk-in freezer with 4 evaporators how many frigologs need?
You require only 1 but recommend use a probe for each area/evaporator. 

What happen during defrost interval?

enter/out